WELL · 42-227-39398 · DISTRICT 8
Mayo SN 48-37 04 #104H
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Mayo SN 48-37 04 #104H (API 42-227-39398) is a horizontal well in Howard County operated by Diamondback E&P LLC, completed July 1, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 20, 2017, permitted to 9,500 ft.
It was permitted by Energen Resources Corporation and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Seven Rivers, Coleman Junction, San Andres.
Its lease has reported 449K barrels of oil and 1.48M mcf of gas since July 2018, last reporting in July 2026.
Operator of record
Permitted by Energen Resources Corporation; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Energen Resources CorporationDec 20, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,500
- total depth, ft
- 1
- permits on file
- Dec 20, 2017
- last permit issued
- Jul 1, 2018
- completed
- 449K
- cumulative oil, bbl
- 1.48M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 1, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.450532, -101.664130
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Howard County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayo SN 48-37 04 O-10-50922 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 449K | 1.48M | Jul 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 150,166 · prior 12 164,964(-9%)
Oil, barrels lease total
Last 12 months 11,756 · prior 12 10,351(+14%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Energen Resources CorporationJul 2018 → Jan 2019
- 2Diamondback E&P LLCFeb 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 834015-99 | Drill | Energen Resources Corporation | Dec 7, 2017 | Dec 20, 2017 | Jan 3, 2018 | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-50922 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,677 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,001 | 676 |
| Seven Rivers | 2,113 | 564 |
| Coleman Junction | 3,400 | -723 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,698 | -1,021 |
| Glorieta | 4,168 | -1,491 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 4,707 | -2,030 |
| Leonard | 4,707 | -2,030 |
| Spraberry | 6,276 | -3,599 |
| Dean | 8,046 | -5,369 |
| Wolfcamp | 8,216 | -5,539 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,436 | 15,504 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,060 | 17.5 | 2,110 S |
| 9.625 | 7,588 | 12.25 | 1,595 S |
| 5.5 | 15,598 | 8.75 | 1,790 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 10, 2019 | Aug 8, 2018 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-227-39398 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-39398 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
W H 48 Unit42-227-39092
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,022 | 652 |
| Seven Rivers | 2,195 | 479 |
| San Andres | 3,689 | -1,015 |
| Glorieta | 4,393 | -1,719 |
| Clear Fork | 4,636 | -1,962 |
| Spraberry | 6,712 | -4,038 |
| Leonard | 7,692 | -5,018 |
| Dean | 8,030 | -5,356 |
12 TOPS · FIRST 8
W H 48 Unit42-227-39091
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,013 | 661 |
| Seven Rivers | 2,188 | 486 |
| San Andres | 3,675 | -1,001 |
| Glorieta | 4,378 | -1,704 |
| Clear Fork | 4,632 | -1,958 |
| Spraberry | 6,706 | -4,032 |
| Leonard | 7,657 | -4,983 |
| Dean | — |
10 TOPS · FIRST 8
W H 48 Unit42-227-39090
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,014 | 661 |
| Seven Rivers | 2,191 | 484 |
| San Andres | 3,675 | -1,000 |
| Glorieta | 4,370 | -1,695 |
| Clear Fork | 4,633 | -1,958 |
| Spraberry | 6,705 | -4,030 |
| Leonard | 7,679 | -5,004 |
| Dean | 8,016 | -5,341 |
10 TOPS · FIRST 8
W H 48 Unit42-227-39089
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,015 | 660 |
| Seven Rivers | 2,191 | 484 |
| San Andres | 3,671 | -996 |
| Glorieta | 4,365 | -1,690 |
| Clear Fork | 4,635 | -1,960 |
| Spraberry | 6,700 | -4,025 |
| Leonard | 7,649 | -4,974 |
| Coleman Junction | — |
10 TOPS · FIRST 8
Mayo SN 48-37 0642-227-39400
0.2 KM · Energen Resources Corporation · Section with this well →
| Yates | 1,997 | 681 |
| Seven Rivers | 2,108 | 570 |
| Coleman Junction | 3,400 | -722 |
| San Andres | 3,693 | -1,015 |
| Glorieta | 4,163 | -1,485 |
| Clear Fork | 4,703 | -2,025 |
| Leonard | 4,703 | -2,025 |
| Spraberry | 6,719 | -4,041 |
10 TOPS · FIRST 8
W H 48 Unit42-227-40707
0.4 KM · Diamondback E&P LLC · Section with this well →
| Yates | 2,000 | 675 |
| Seven Rivers | 2,113 | 562 |
| Grayburg | 3,082 | -407 |
| San Andres | 3,707 | -1,032 |
| Glorieta | 4,361 | -1,686 |
| Clear Fork | 4,631 | -1,956 |
| Spraberry | 6,685 | -4,010 |
| Rustler | — |
10 TOPS · FIRST 8
W H 48 Unit42-227-40706
0.4 KM · Diamondback E&P LLC · Section with this well →
| Yates | 1,997 | 679 |
| Seven Rivers | 2,112 | 564 |
| Grayburg | 3,090 | -414 |
| San Andres | 3,708 | -1,032 |
| Glorieta | 4,348 | -1,672 |
| Clear Fork | 4,616 | -1,940 |
| Spraberry | 6,676 | -4,000 |
| Canyon | — |
14 TOPS · FIRST 8
Mayo SN 48-37 0642-227-39913
0.4 KM · Energen Resources Corporation · Section with this well →
| Yates | 2,002 | 681 |
| Seven Rivers | 2,130 | 553 |
| San Andres | 3,673 | -990 |
| Glorieta | 4,372 | -1,689 |
| Clear Fork | 4,617 | -1,934 |
| Spraberry | 6,702 | -4,019 |
| Leonard | — | |
| Dean | — |
10 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/22739398, documented in the API reference.